/*
 * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Unlicense OR CC0-1.0
 *
 * This test code is in the Public Domain (or CC0 licensed, at your option.)
 *
 * Unless required by applicable law or agreed to in writing, this
 * software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied.
 */

#include <sys/time.h>
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "unity.h"
#include "test_utils.h"
#include "memory_checks.h"
#include "mqtt_client.h"
#include "nvs_flash.h"
#include "esp_ota_ops.h"
#include "sdkconfig.h"
#include "test_mqtt_client_broker.h"
#include "test_mqtt_connection.h"
#include "esp_mac.h"

static void test_leak_setup(const char * file, long line)
{
    uint8_t mac[6];
    struct timeval te;
    gettimeofday(&te, NULL); // get current time
    esp_read_mac(mac, ESP_MAC_WIFI_STA);
    printf("%s:%ld: time=%jd.%lds, mac:" MACSTR "\n", file, line, (intmax_t)te.tv_sec, te.tv_usec, MAC2STR(mac));
    test_utils_record_free_mem();
}

TEST_CASE("mqtt init with invalid url", "[mqtt][leaks=0]")
{
    test_leak_setup(__FILE__, __LINE__);
    const esp_mqtt_client_config_t mqtt_cfg = {
            .broker.address.uri = "INVALID",
    };
    esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
    TEST_ASSERT_EQUAL(NULL, client );
}

TEST_CASE("mqtt init and deinit", "[mqtt][leaks=0]")
{
    test_leak_setup(__FILE__, __LINE__);
    const esp_mqtt_client_config_t mqtt_cfg = {
            // no connection takes place, but the uri has to be valid for init() to succeed
            .broker.address.uri = "mqtts://localhost:8883",
    };
    esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
    TEST_ASSERT_NOT_EQUAL(NULL, client );
    esp_mqtt_client_destroy(client);
}

static const char* this_bin_addr(void)
{
    spi_flash_mmap_handle_t out_handle;
    const void *binary_address;
    const esp_partition_t* partition = esp_ota_get_running_partition();
    esp_partition_mmap(partition, 0, partition->size, SPI_FLASH_MMAP_DATA, &binary_address, &out_handle);
    return binary_address;
}

TEST_CASE("mqtt enqueue and destroy outbox", "[mqtt][leaks=0]")
{
    const char * bin_addr = this_bin_addr();
    test_leak_setup(__FILE__, __LINE__);
    const int messages = 20;
    const int size = 2000;
    const esp_mqtt_client_config_t mqtt_cfg = {
            // no connection takes place, but the uri has to be valid for init() to succeed
            .broker.address.uri = "mqtts://localhost:8883",
    };
    esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
    TEST_ASSERT_NOT_EQUAL(NULL, client );
    int bytes_before = esp_get_free_heap_size();
    for (int i=0; i<messages; ++i) {
        esp_mqtt_client_publish(client, "test", bin_addr, size, 1, 0);
    }
    int bytes_after = esp_get_free_heap_size();
    // check that outbox allocated all messages on heap
    TEST_ASSERT_GREATER_OR_EQUAL(messages*size, bytes_before - bytes_after);

    esp_mqtt_client_destroy(client);
}

#if SOC_EMAC_SUPPORTED
/**
 * This test cases uses ethernet kit, so build and use it only if EMAC supported
 */
TEST_CASE("mqtt broker tests", "[mqtt][test_env=UT_T2_Ethernet]")
{
    test_case_uses_tcpip();
    connect_test_fixture_setup();

    RUN_MQTT_BROKER_TEST(mqtt_connect_disconnect);
    RUN_MQTT_BROKER_TEST(mqtt_subscribe_publish);
    RUN_MQTT_BROKER_TEST(mqtt_lwt_clean_disconnect);
    RUN_MQTT_BROKER_TEST(mqtt_subscribe_payload);

    connect_test_fixture_teardown();
}
#endif // SOC_EMAC_SUPPORTED
